- Joined
- Mar 25, 2018
- Threads
- 45
- Messages
- 1,194
- Reaction score
- 1,059
- Location
- Cesspool
- Vehicle(s)
- 2019 Civic Si
- Banned
- #16
how long have u been running +9?But, knowing Honda, they always overbuilt their cars.. they also know that people bought the Si for the performance, and most likely to modify it to increase the power level..
The +9psi doesn't give much increase from +6psi, and as long you don't do the Scramble mode and improve throttle response, the torque curve feels pretty smooth, that's good for your internals.
Not to mention this 10th gen civics have lower redline.
But that's my 2cents though, i trusted my Civic Si with +9psi more than my friends 94 built Del Sol Si with increased 10k rpm.
Aaaaaand i spent less money than him LOL
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